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A piece of iron mass=25.0g at 398 K is placed in a Styrofoam coffee cup containing 25.0mL of water at 298 K. Presuming that no heat is lost to the cup or the surroundings, explain what will the final temperature of the water be? Define the specific heat capacity of iron= 0.449 J/g degree C and water = 4.18 J/g degree C.
Explain the octet rule and the duet rule in terms of orbitals. It will be helpful for you to draw out the electron configurations for a few of these elements and examine them.
2 g of a hydrocarbon fuel is burned in a colrimeter that contains 250 grams of water initially at 25 degrees celcius. After the combustion, the temperature is 26.55 degrees celcius.
The PH of 0.1 M MCL ( M+ Iis unknown cation ) was found to be 4.7. write an net ionic equation for the hydrolysis of M+ and it's corresponding equilibrium expression Kp . Calculate the value of KP
What is the pressure in atmospheres inside a container of gas connected to a mercury-filled open-end manometer when the level in the arm connected to the container is 22.5 cm higher than the level in the arm open to the atmosphere andthe atmospher..
If a pressure of one atm can support a column of mercury 760 millimeters tall, how tall a column of water will one atm support
What is the effect of a pressure change from 760 torr to 202 kPa, and the temperature changes from 37 degrees Celsius to 155K on the volume of 1 mol of an ideal gas
What is the equilibrium constant, K, of the following reaction given the following equilibrium conditions
Draw a circuit diagram that has two resistors in series with a DC voltage source. If resistor one (R1) is 758 kohms and resistor two (R2) is 712 kohms, then what is the current flowing through the circuit if the voltage is 8.49 V?
Draw the structures of the products of the neutralization reaction between pyridine and propanoic acid.
Four (4.00) moles of a perfect gas at 250.0 K and 1.50 bar pressure undergo a reversible isothermal compression until the pressure becomes 3.00 bar.
In a reversible adiabatic expansion of an ideal gas, the pressure and volume are related PV^gama= Constant by . Show that the work of adiabatic expansion from P1, V1 to P2, V2 is W= P2*V2-P1*V1/ Gama -1
All numerical answers must be reported to the correct number of significant figures. In a routine laboratory analysis, a technician prepare a solution containing 0.126 g of KMnO4 in a 0.250 L volumetric flask. What is the molar concentration (mola..
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